Pith Number

pith:SZ5NU4ML

pith:2012:SZ5NU4MLPSBURWAGZT4DKCC6KY

not attested not anchored not stored refs pending

Weak covering properties and infinite games

Bruno A. Pansera, Liljana Babinkostova, Marion Scheepers

arxiv:1202.0194 v2 · 2012-02-01 · math.GN

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SZ5NU4MLPSBURWAGZT4DKCC6KY}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:02:26.735698Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

967ada718b7c8348d806ccf835085e563e7441163a0060e3db7c36e27de25f34

Aliases

arxiv: 1202.0194 · arxiv_version: 1202.0194v2 · doi: 10.48550/arxiv.1202.0194 · pith_short_12: SZ5NU4MLPSBU · pith_short_16: SZ5NU4MLPSBURWAG · pith_short_8: SZ5NU4ML

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SZ5NU4MLPSBURWAGZT4DKCC6KY \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 967ada718b7c8348d806ccf835085e563e7441163a0060e3db7c36e27de25f34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad5369be4087603526733fa0a1af461b9bcb29452db08772e1330cda868d1adb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2012-02-01T15:44:39Z",
    "title_canon_sha256": "493e83defc079fbd00ee9b955b20a5fe9d680951c7367685292ec30c3ad5d53f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.0194",
    "kind": "arxiv",
    "version": 2
  }
}